Hope this helps......
A saving account pays 3.6% per annum simple interest Heidi puts £400 into the account, how much will she have in the account aft
1 answer:
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There are six digits to choose from, but you're only taking three at a time, so the number of such numbers is
The first and last digits can only be even if the number takes the one of the forms "2 _ 8" or "8 _ 2". The middle number can be any of the remaining four, so there is a total of eight such numbers.
This means the probability of getting a number beginning and ending with an even digits is
.
The first and last digits can only be even if the number takes the one of the forms "2 _ 8" or "8 _ 2". The middle number can be any of the remaining four, so there is a total of eight such numbers.
This means the probability of getting a number beginning and ending with an even digits is
If 
satisfies the ODE 
, then
and substituting into the ODE gives
so that the ODE is
.
I'm assuming that you're also supposed to determine the initial value
given this ODE. You have
Given
, you have
but since you already know that
, it follows that 
, and in turn that 
.
and substituting into the ODE gives
so that the ODE is
I'm assuming that you're also supposed to determine the initial value
Given
but since you already know that